This information has been gathered from my personal collection of original Buick literature.  This handy booklet is 8 1/2 by 5 1/2 and is 87 pages. The first section has illustrations of the various parts of the 1987 Turbo Regal engine (be the same as the 1986) and in many cases provides the GM part number in the illustration.

The second part of this handy size book is a trouble shooting guide for the factory sunroof and also the factory T-Tops.  It goes into great detail the issue and the solution for the various issues.  At the end of this section for both the sunroof option and the T-Top option we give each GM part number for the various parts including the illustration showing the actual parts.

Related Products;  #7989 1984-1987 BUICK REGAL ALL MODELS – PRICE DIRECTORY AND GM PRODUCTION OPTIONS BOOKLET,  #7991 1983-1988 Chevrolet Monte Carlo (All Models) Price Directory and GM Production Options (with codes included) Booklet, #7992 1987 GNX Project From Proposal To Production Booklet, #8025 Wiring Diagrams and Compnents Locations Booklet, #8026 Buick Turbo Regal Cartoons Over The Years Booklet, #8027 1987 Buick Regal Press Kit and Dealer Album Information, #8028 1986 Buick Regal Press Kit and Dealer Album Information Booklet, #8029 1985-1987 Buick Trubo Regal Powermaster Brake System Trouble Shooter Booklet, #8034 The History of the Buick Grand National in Pictures Booklet.

Now you can have all this critical information in one handy spiral bound booklet.

7990 1987 3.8 SFI Turbo Regal Engine Description Manual and 1984-1987 Buick Regal G-Body Sunroof and T-Top Trouble Shooter Information Booklet